Glacier Peak Volcano

Western U.S. - Washington


SUMMARY

Type: dome cluster
Activity: dormant
Last Eruption: 18th century
Rock Type: andesite to dacite
Eruptive Volume: ?
Location Map from Xerox PARC
Latitude: 48.12 N
Longitude: 121.12 W


Geologic Background:

Glacier Peak is not prominently visible from any major metropolitan centers, and so its attractions, as well as its hazards, tend to be overlooked. Yet, Glacier Peak has produced larger and more explosive eruptions than any other Washington volcano except Mount St. Helens. In the past 14,000 years, Glacier Peak has erupted at least a dozen times, most recently around the eighteenth century.

Historic Activity:

  • No eruption activity has occurred during at least the last 150 yrs.

Recent Activity:

  • Three hot springs surround the volcano and warm ground.

Data Sources:


ADDITIONAL INFORMATION


Last Update: 1/8/01